Current developments in TETRA

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• Current developments in TETRA
• K.-H. (Charly) Hengevoß
• Board Member
• TETRA MoU Association
• Rohill Engineering B.V.

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Fire Exits
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Agenda

• TETRA The living standard
• How to interconnect two TETRA systems
• TETRA Release 2 is more than TEDS...
• TETRA Release 2 A world filled with
  applications
• The future beyond TETRA Release 2

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The living standard

• Standardisation started in the late 80s
• First version of air interface specification
  ETSI ETS 300 392-2 ed 1 published in March 1996
• First nationwide TETRA public safety network
  completed in 2002
• TETRA Association formed in 1995
• First IOP Test certificates in 1999
• Core document for TETRA Release 2, the ETSI EN
  300 392-2 V 3.1.1, published in 09/2006

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How to interconnect two TETRA systems

• European integration includes cross-border police
  co-operation
• Specification for harmonised radio anddata
  communication
• ETSI standard TETRA satisfies keySchengen
  requirements
• EU decision to conduct a pilot testprogramme

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Three-Country Pilot   

• National sub-networks were connected in June 2003
• First tests of cross-border communications in
  October/November 2002
• Practical test with police forces, fire brigades,
  rescue services, customs and civil protection
  carried out in May/June 2003
• Final report published inNovember 2003
• http//www.3countrypilot.com

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Does TETRA handle data?

• Database look up
• AVL
• Email
• Data transmission
• Limited slow scan video
• But multimedia applicationsare more difficult...

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Evolution Application vs. TETRA
today
TETRA 1 Circuit Data TETRA 1 Short Data Services TETRA 1 Single Slot Packet Data TETRA 1 Multi-slot Packet Data TETRA 2 TEDS
Database look up
AVL
Email
File transfer e.g. Still image
Slow scan video
QoS managed video
Not suitable
Suitable
Effektive
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Mission critical data applications with TETRA

• Current applications require data transmission
  capacity
• Frequent messages, small payload
• GPS position data from portables and vehicles
• Database requests
• Status messaging
• But some applications require higher data
  throughput
• Infrequent messages, much higher payload
• Picture of a wanted person
• File transfer
• Slow scan video

TETRA Single Slot Packet Data
TETRA Multi Slot Packet Data
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TETRA Enhanced Data Service - TEDS

• Backward compatible with TETRA Release 1 -
  Network integration capability
• Flexible data rates and spectrum use - 25, 50,
  100, and 150 kHz channels bandwidths - Can trade
  off data rate, spectrum and range
• Integrated TETRA 1 and TEDS systems - i.e. Can
  receive TETRA 1 calls on TEDS channels
• Technology selected for TEDS use - Multi-carrier
  QAM (Quadrature Amplitude Modulation) in all
  bandwidths - D8PSK in 25 kHz

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Gross data transmission rates for QAM
Modulation scheme Channel bandwidths Channel bandwidths Channel bandwidths Channel bandwidths
Modulation scheme 25 kHz 50 kHz 100 kHz 150 kHz
4-QAM 38,4 76,8 153,6 230,4
16-QAM 76,8 153,6 307,2 460,8
64-QAM 115,2 230,4 460,8 691,2
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How do data, range, bandwidth vary?
600 kb/s
FramingRate
500 kb/s
150 kHz
400 kb/s
Modulation scheme 64QAM 16QAM 4QAM D8PSK (25 kHz)
300 kb/s
100 kHz
200 kb/s
50 kHz
100 kb/s
25 kHz
Range (km)
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How does this compare with TETRA 1?
600 kb/s
FramingRate
500 kb/s
150 kHz
400 kb/s
Modulation scheme 64QAM 16QAM 4QAM D8PSK (25 kHz)
300 kb/s
100 kHz
200 kb/s
50 kHz
100 kb/s
25 kHz
Range (km)
TETRA 1
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The Power of TETRA Release 2
TETRA 1 TETRA 2 at 25 kHz
TETRA 2 at 150 kHz
TETRA 2 at 50 kHz
TETRA 2 at 100 kHz
TETRA 2 at 100 kHz
TETRA 2 at 50 kHz
TETRA 2 at 150 kHz
Legend Circle size coverage area Circle height
data capacity
All TETRA 2 sites include TETRA 1
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The news in TETRA Release 2

• New speech codec
• USIM requirement for TETRA
• Interworking and Roaming with other networks 3G
• Enhancement of the air interface
• Extension of operating range of TETRA
• Support for further requirements (e.g. location
  information)

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TETRA Release 2 brings newcapabilities to fire

• Floorplans of burning buildings
• TETRA 1
• Database of plans held on CD in cab
• TETRA 2
• Updated plans can be downloaded as appliance is
  on route
• Fire fighters get latest information
• Check database of hazardous chemicals
• TETRA 1
• Text based results from database search
• TETRA 2
• Text and image results from database search
• Fire fighters get clearer information

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TETRA Release 2 brings newcapabilities to
Ambulance

• Transmit ECG trace from ambulance to doctor
• in hospital
• TETRA 1
• Transmit compressed ECG
• TETRA 2
• Less compression means more details on ECG
• More accurate diagnostic for rare heart
  conditions
• Transmit pictures from crash scene
• TETRA 1
• Still images or slow scan video
• TETRA 2
• More detailed video images
• Doctors can make more accurate predictions

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TETRA 2 Data Applications User Benefit
Police Mobile surveillance camera that doesnt alert the suspect Greater details can prove vital to remotely monitor operations
Transport Live update of arrival/departure boards More relevant and accurate information to passengers
Transport Check image database to see manifests, passenger lists etc. Helps reduce smuggling of goods and people
Oil, Gas Utilities Camera monitoring at very remote locations to check on lone workers Increase safety for remote workers
Oil, Gas Utilities Camera monitoring of areas at risk used to supplement telemetry data Faster and more accurate understanding of events
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Status of TETRA Release 2

• Core document EN 300 392 2 v 3.1.1 has been
  delivered 20.09.2006.
• Work on related aspects as e.g. PEI almost
  completed
• European Regulators working on frequency
  allocation
• Manufacturers started development
• 27th/28th March 2007 a user/manufacturer workshop
  on prioritising the introduction takes place in
  Bonn

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The future beyond TETRA Release 2

• Intention to describe and define functional and
  operational user requirements, capabilities,
  applications and scenarios beyond 2015
• Activities towards globalisation of future
  telecommunications standardisation work -
  Transfer of ETSI Project DAWS to the European-
  American joint project MESA connected with
  TIAs APCO Project 25/34
• Increasing the transparency in patents and
  licences - ETSI revised its own Patent Policy
  to meet future requirements

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